D2321133131232313231323221323132311331322331311331323221122112313221   >>    D232113313123231323132322132313231133132233131133132322112211231322   <<    D2321133131232313231323221323132311331322331311331323221122112313223   >>      D2321133131232313231323221323132311331322331311331323221122112313222   >>